How severe is CVE-2026-44332?

CVE-2026-44332 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-44332 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44332?

CVE-2026-44332 affects Gofiber Fiber. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-44332?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-44332 published?

CVE-2026-44332 was published on 2026-07-08 and last updated on 2026-07-15.

CVE-2026-44332

CVE-2026-44332 is a medium-severity vulnerability in Gofiber Fiber with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-203.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Gofiber Fiber
Published: 2026-07-08
Last modified: 2026-07-15

Description

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0, the default Authorizer function in the BasicAuth middleware in middleware/basicauth/config.go uses short-circuit evaluation that skips password hash comparison for non-existent usernames, enabling reliable remote username enumeration through response timing differences. This issue is fixed in version 3.3.0.

Frequently asked questions

What is CVE-2026-44332?: Fiber is an Express inspired web framework written in Go. Prior to 3.3.0, the default Authorizer function in the BasicAuth middleware in middleware/basicauth/config.go uses short-circuit evaluation that skips password hash comparison for non-existent usernames, enabling reliable remote username enumeration through response timing differences. This issue is fixed in version 3.3.0.
How severe is CVE-2026-44332?: CVE-2026-44332 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-44332 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44332?: CVE-2026-44332 affects Gofiber Fiber. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-44332?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-44332 published?: CVE-2026-44332 was published on 2026-07-08 and last updated on 2026-07-15.

References

Affected products (1)

cpe:2.3:a:gofiber:fiber:*:*:*:*:*:go:*:*

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